Southeast Asia's internet economy is expected to exceed $240 billion by 2025, a joint study by Google and Temasek Holdings showed, a fifth more than previously estimated, as more consumers use their smartphones to go online. The latest report released on Monday adds new sectors such as online food delivery, as well as subscription music and video on demand. It estimated that the gross merchandise value (GMV) of the region's internet economy has reached $72 billion in 2018, rising 37 percent from the year earlier.